Fatigue is a term used to describe an overall feeling of
tiredness or lack of energy. It isn't the same as simply feeling drowsy or
sleepy. When you're fatigued, you have no motivation and no energy. Being
sleepy may be a symptom of fatigue, but i...

Breathing difficulty is a broad term that is used to describe discomfort when breathing, and the feeling that you cannot draw a breath. This can develop gradually, or your breathing may suddenly become more laboured. In either case, medical attent...

Vomiting, or throwing up, is a forceful
discharge of stomach contents. It can be a one-time event linked to something
that doesn't settle right in the stomach. Recurrent vomiting may be cause by
underlying medical conditions. Frequent vomiting may...

Seizures are changes in the brain's electrical activity. This change can cause dramatic, noticeable symptoms or it may not cause any symptoms. The symptoms of a severe seizure include violent shaking and a loss of control. However, mild seizures c...

Dry mouth, or xerostomia, is a condition that occurs when saliva glands in the mouth don't work properly, causing a parched feeling in the mouth. Some possible causes are dehydration, pain relievers, stress, appetite suppressants,
autoimmune diso...